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Method for preparing air purifying fabric by biomimetic synthesis low-temperature in-site secondary growth process

A low-temperature in-situ, secondary growth technology, applied in the direction of plant fibers, animal fibers, textiles and paper, can solve the problems of flexible substrates easy to photooxidative degradation, flexible substrates are not resistant to high temperature, low catalytic efficiency, etc., to achieve The effect of avoiding the reduction of agglomeration efficiency, strong oxidation ability, and simple preparation method

Inactive Publication Date: 2010-08-11
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods have problems such as the photocatalyst being covered by the adhesive, serious agglomeration, low catalytic efficiency, and easy photooxidative degradation of the flexible substrate.
Because flexible substrates are not resistant to high temperatures, the use of photocatalyst deposition on flexible substrates for crystal transformation is limited.

Method used

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  • Method for preparing air purifying fabric by biomimetic synthesis low-temperature in-site secondary growth process
  • Method for preparing air purifying fabric by biomimetic synthesis low-temperature in-site secondary growth process
  • Method for preparing air purifying fabric by biomimetic synthesis low-temperature in-site secondary growth process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Preparation of antioxidant finishing solution

[0031] Mix 500ml of absolute ethanol, 0.5g of ammonium chloride, 200ml of distilled water and 100ml of acetone evenly, and then add 20ml of 3-glycidyl propyl ether methoxysilane dropwise to obtain a biomimetic protection and anti-oxidation finishing solution;

[0032] (2) Protective finishing of wool fabric against photooxidation

[0033] Soak the wool fabric in the above finishing solution, keep stirring at room temperature for 4 hours at 200rpm, take it out, rinse with distilled water and ethanol, and dry at 100°C;

[0034] (3) Surface pretreatment of wool fabric after anti-photooxidation protection

[0035] The wool fabric after the above treatment is immersed in the pretreatment solution for 5min, then rinse the fabric with deionized water to remove excess electrolyte, and dry; the pretreatment solution is dimethyldiallyl chloride with a mass fraction of 1%. ammonium chloride, 0.5% polystyrene, 20% sodium chlorid...

Embodiment 2

[0045] (1) Preparation of antioxidant finishing solution

[0046] Mix 600ml of absolute ethanol, 2g of octyltrimethoxysilane, 500ml of distilled water and 200ml of acetone evenly, then add 50ml of silane dropwise to obtain a biomimetic protection and anti-oxidation finishing solution;

[0047] (2) Protective finishing of cotton fabric against photooxidation

[0048]Soak the cotton fabric in the above finishing solution, keep stirring at room temperature for 8 hours at 400rpm, take it out, rinse it with distilled water and ethanol, and dry it at 130°C;

[0049] (3) Cotton fabric surface pretreatment after anti-photooxidation protection

[0050] The cotton fabric after the above treatment is immersed in the pretreatment solution for 15min, then rinse the fabric with deionized water to remove excess electrolyte, and dry; the pretreatment solution is 3% dimethyl diallyl chloride ammonium chloride, 1% polystyrene, 30% sodium chloride, and the rest is water;

[0051] (4) Preparat...

Embodiment 3

[0060] (1) Preparation of antioxidant finishing solution

[0061] Mix 700ml of absolute ethanol, 2.5g of ammonium hydrogen phosphate, 400ml of distilled water and 200ml of acetone evenly, and then add 50ml of phenyltrimethoxysilane drop by drop to configure a biomimetic protection and anti-oxidation finishing solution;

[0062] (2) Protective finishing of linen fabric against photooxidation

[0063] Soak the linen fabric in the above finishing solution, keep stirring at room temperature for 5 hours at 300rpm, take it out, rinse it with distilled water and ethanol, and dry it at 120°C;

[0064] (3) Surface pretreatment of linen fabric after anti-photooxidation protection

[0065] The linen fabric after above-mentioned treatment is soaked in the pretreatment solution 15min, then rinses the fabric with deionized water to remove excess electrolyte, and dries; The pretreatment solution is dimethyldiallyl chloride with a mass fraction of 3%. ammonium chloride, 0.5-1% polystyrene, ...

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Abstract

The invention relates to a method for preparing an air purifying fabric by a biomimetic synthesis low-temperature in-site secondary growth process. The method comprises the following steps of: (1) mixing anhydrous alcohol, catalyst, distilled water and acetone, and adding silane to obtain a finishing liquor; (2) immersing the fabric into the finishing liquor, mixing, eluting and drying; (3) immersing the fabric into a pretreatment solution containing dimethyldiallylammonium chloride, PPV and sodium chloride, and drying; (4) adding titanium tetraisopropylate into isopropanol under the stirring condition in the inert atmosphere, adding a stabilizer, stirring, continuously adding the isopropanol, inhibitor and deionized water, stirring, and adding a wetting agent to obtain a sol; (5) immersing the fabric subject to treatment by step (3) in the sol to carry out in-site synthesis, and drying; (6) boiling in boiled water, and drying. The invention has the advantages of simple process and low cost, and is suitable for industrial production; the air purifying effect of the prepared material is good, the damage to fiber is small, and the material has antibacterial effect and no secondary pollution.

Description

technical field [0001] The invention belongs to the field of preparation of air-purifying fabrics, in particular to a method for preparing air-purifying fabrics by a bionic synthesis low-temperature in-situ secondary growth method. Background technique [0002] With the rapid development of social economy and the improvement of living standards, people's requirements for environmental quality are becoming more and more stringent. The government has vigorously strengthened outdoor greening construction to purify the air and absorb pollution. The pollution level of indoor air is generally 2 to 10 times that of outdoor air, and even more than 100 times in extreme cases. The interior decoration of houses, the use of office supplies and household appliances, spraying pesticides, cooking fumes, and smoking are all sources of indoor air pollution. Among them, formaldehyde, benzene series and ammonia have the highest concentrations, which are harmful to human health. most threaten...

Claims

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Application Information

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IPC IPC(8): D06M13/50D06M11/13D06M13/463D06M15/233D06M11/46D06M101/12D06M101/06
Inventor 何瑾馨刘保江王振华高品
Owner DONGHUA UNIV
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